public void Shutdown(UvStreamHandle handle, Action<UvShutdownReq, int, object> callback, object state)
{
_callback = callback;
_state = state;
Pin();
_uv.shutdown(this, handle, _uv_shutdown_cb);
}
private static void OnConnectionCallback(UvStreamHandle listenSocket, int status, Exception error, object state)
{
var listener = (UvTcpListener)state;
var acceptSocket = new UvTcpHandle();
try
{
acceptSocket.Init(listener._thread.Loop, null);
acceptSocket.NoDelay(true);
listenSocket.Accept(acceptSocket);
var connection = new UvTcpConnection(listener._thread, acceptSocket);
ExecuteCallback(listener, connection);
}
catch (UvException)
{
acceptSocket.Dispose();
}
}
public void accept(UvStreamHandle server, UvStreamHandle client)
{
server.Validate();
client.Validate();
ThrowIfErrored(_uv_accept(server, client));
}
public static extern int uv_shutdown(UvShutdownReq req, UvStreamHandle handle, uv_shutdown_cb cb);
private unsafe void Write(
UvStreamHandle handle,
ReadOnlySequence <byte> buffer,
Action <UvWriteReq, int, object> callback,
object state)
{
try
{
int nBuffers = 0;
if (buffer.IsSingleSegment)
{
nBuffers = 1;
}
else
{
foreach (var span in buffer)
{
nBuffers++;
}
}
// add GCHandle to keeps this SafeHandle alive while request processing
_pins.Add(GCHandle.Alloc(this, GCHandleType.Normal));
var pBuffers = (Uv.uv_buf_t *)_bufs;
if (nBuffers > BUFFER_COUNT)
{
// create and pin buffer array when it's larger than the pre-allocated one
var bufArray = new Uv.uv_buf_t[nBuffers];
var gcHandle = GCHandle.Alloc(bufArray, GCHandleType.Pinned);
_pins.Add(gcHandle);
pBuffers = (Uv.uv_buf_t *)gcHandle.AddrOfPinnedObject();
}
if (nBuffers == 1)
{
var memory = buffer.First;
var memoryHandle = memory.Pin();
_handles.Add(memoryHandle);
pBuffers[0] = Libuv.buf_init((IntPtr)memoryHandle.Pointer, memory.Length);
}
else
{
int i = 0;
foreach (var memory in buffer)
{
var memoryHandle = memory.Pin();
_handles.Add(memoryHandle);
pBuffers[i++] = Libuv.buf_init((IntPtr)memoryHandle.Pointer, memory.Length);
}
}
_callback = callback;
_state = state;
_uv.write(this, handle, pBuffers, nBuffers, _uv_write_cb);
}
catch
{
_callback = null;
_state = null;
Unpin(this);
throw;
}
}
public extern static int uv_read_start(UvStreamHandle handle, uv_alloc_cb alloc_cb, uv_read_cb read_cb);
public static extern int uv_try_write(UvStreamHandle handle, uv_buf_t[] bufs, int nbufs);
unsafe public void write2(UvRequest req, UvStreamHandle handle, Uv.uv_buf_t* bufs, int nbufs, UvStreamHandle sendHandle, uv_write_cb cb)
{
req.Validate();
handle.Validate();
ThrowIfErrored(_uv_write2(req, handle, bufs, nbufs, sendHandle, cb));
}
public static extern int uv_listen(UvStreamHandle handle, int backlog, uv_connection_cb cb);
public static extern int uv_accept(UvStreamHandle server,UvStreamHandle client);
public extern static int uv_read_start(UvStreamHandle handle,uv_alloc_cb alloc_cb,uv_read_cb read_cb);
public void shutdown(UvShutdownReq req, UvStreamHandle handle, uv_shutdown_cb cb)
{
req.Validate();
handle.Validate();
ThrowIfErrored(_uv_shutdown(req, handle, cb));
}
public static extern int uv_listen(UvStreamHandle handle,int backlog,uv_connection_cb cb);
unsafe public void write2(UvRequest req, UvStreamHandle handle, Uv.uv_buf_t *bufs, int nbufs, UvStreamHandle sendHandle, uv_write_cb cb)
{
req.Validate();
handle.Validate();
ThrowIfErrored(_uv_write2(req, handle, bufs, nbufs, sendHandle, cb));
}
public void read_stop(UvStreamHandle handle)
{
handle.Validate();
ThrowIfErrored(_uv_read_stop(handle));
}
public void read_start(UvStreamHandle handle, uv_alloc_cb alloc_cb, uv_read_cb read_cb)
{
handle.Validate();
ThrowIfErrored(_uv_read_start(handle, alloc_cb, read_cb));
}
private unsafe Uv.uv_buf_t OnAlloc(UvStreamHandle handle, int status)
{
_inputBuffer = _input.Alloc(2048);
void* pointer;
if (!_inputBuffer.Memory.TryGetPointer(out pointer))
{
throw new InvalidOperationException("Pointer must be pinned");
}
return handle.Libuv.buf_init((IntPtr)pointer, _inputBuffer.Memory.Length);
}
public static extern int uv_read_stop(UvStreamHandle handle);
public unsafe void Write(
UvStreamHandle handle,
ReadableBuffer buffer,
Action<UvWriteReq, int, object> callback,
object state)
{
try
{
// Preserve the buffer for the async call
_buffer = buffer.Preserve();
buffer = _buffer.Buffer;
int nBuffers = 0;
if (buffer.IsSingleSpan)
{
nBuffers = 1;
}
else
{
foreach (var span in buffer)
{
nBuffers++;
}
}
// add GCHandle to keeps this SafeHandle alive while request processing
_pins.Add(GCHandle.Alloc(this, GCHandleType.Normal));
var pBuffers = (Uv.uv_buf_t*)_bufs;
if (nBuffers > BUFFER_COUNT)
{
// create and pin buffer array when it's larger than the pre-allocated one
var bufArray = new Uv.uv_buf_t[nBuffers];
var gcHandle = GCHandle.Alloc(bufArray, GCHandleType.Pinned);
_pins.Add(gcHandle);
pBuffers = (Uv.uv_buf_t*)gcHandle.AddrOfPinnedObject();
}
if (nBuffers == 1)
{
var memory = buffer.First;
void* pointer;
if (memory.TryGetPointer(out pointer))
{
pBuffers[0] = Libuv.buf_init((IntPtr)pointer, memory.Length);
}
else
{
throw new InvalidOperationException("Memory needs to be pinned");
}
}
else
{
int i = 0;
void* pointer;
foreach (var memory in buffer)
{
if (memory.TryGetPointer(out pointer))
{
pBuffers[i++] = Libuv.buf_init((IntPtr)pointer, memory.Length);
}
else
{
throw new InvalidOperationException("Memory needs to be pinned");
}
}
}
_callback = callback;
_state = state;
_uv.write(this, handle, pBuffers, nBuffers, _uv_write_cb);
}
catch
{
_callback = null;
_state = null;
_buffer.Dispose();
Unpin(this);
throw;
}
}
public static extern int uv_try_write(UvStreamHandle handle,uv_buf_t[] bufs,int nbufs);
public void shutdown(UvShutdownReq req, UvStreamHandle handle, uv_shutdown_cb cb)
{
req.Validate();
handle.Validate();
ThrowIfErrored(_uv_shutdown(req, handle, cb));
}
unsafe public static extern int uv_write2(UvRequest req,UvStreamHandle handle,uv_buf_t*bufs,int nbufs,UvStreamHandle sendHandle,uv_write_cb cb);
public static extern int uv_accept(UvStreamHandle server, UvStreamHandle client);
public static extern int uv_shutdown(UvShutdownReq req,UvStreamHandle handle,uv_shutdown_cb cb);
public static extern int uv_read_stop(UvStreamHandle handle);
public void listen(UvStreamHandle handle, int backlog, uv_connection_cb cb)
{
handle.Validate();
ThrowIfErrored(_uv_listen(handle, backlog, cb));
}
unsafe public static extern int uv_write2(UvRequest req, UvStreamHandle handle, uv_buf_t* bufs, int nbufs, UvStreamHandle sendHandle, uv_write_cb cb);
public void Accept(UvStreamHandle handle)
{
_uv.accept(this, handle);
}
public unsafe void Write(
UvStreamHandle handle,
ReadableBuffer buffer,
Action <UvWriteReq, int, object> callback,
object state)
{
try
{
// Preserve the buffer for the async call
_buffer = buffer.Preserve();
buffer = _buffer.Buffer;
int nBuffers = 0;
if (buffer.IsSingleSpan)
{
nBuffers = 1;
}
else
{
foreach (var span in buffer)
{
nBuffers++;
}
}
// add GCHandle to keeps this SafeHandle alive while request processing
_pins.Add(GCHandle.Alloc(this, GCHandleType.Normal));
var pBuffers = (Uv.uv_buf_t *)_bufs;
if (nBuffers > BUFFER_COUNT)
{
// create and pin buffer array when it's larger than the pre-allocated one
var bufArray = new Uv.uv_buf_t[nBuffers];
var gcHandle = GCHandle.Alloc(bufArray, GCHandleType.Pinned);
_pins.Add(gcHandle);
pBuffers = (Uv.uv_buf_t *)gcHandle.AddrOfPinnedObject();
}
if (nBuffers == 1)
{
var memory = buffer.First;
void *pointer;
if (memory.TryGetPointer(out pointer))
{
pBuffers[0] = Libuv.buf_init((IntPtr)pointer, memory.Length);
}
else
{
throw new InvalidOperationException("Memory needs to be pinned");
}
}
else
{
int i = 0;
void *pointer;
foreach (var memory in buffer)
{
if (memory.TryGetPointer(out pointer))
{
pBuffers[i++] = Libuv.buf_init((IntPtr)pointer, memory.Length);
}
else
{
throw new InvalidOperationException("Memory needs to be pinned");
}
}
}
_callback = callback;
_state = state;
_uv.write(this, handle, pBuffers, nBuffers, _uv_write_cb);
}
catch
{
_callback = null;
_state = null;
_buffer.Dispose();
Unpin(this);
throw;
}
}
private void OnRead(UvStreamHandle handle, int status)
{
if (status == 0)
{
// A zero status does not indicate an error or connection end. It indicates
// there is no data to be read right now.
// See the note at http://docs.libuv.org/en/v1.x/stream.html#c.uv_read_cb.
_inputBuffer.Commit();
return;
}
var normalRead = status > 0;
var normalDone = status == EOF;
var errorDone = !(normalDone || normalRead);
var readCount = normalRead ? status : 0;
if (!normalRead)
{
handle.ReadStop();
}
IOException error = null;
if (errorDone)
{
Exception uvError;
handle.Libuv.Check(status, out uvError);
error = new IOException(uvError.Message, uvError);
// REVIEW: Should we treat ECONNRESET as an error?
// Ignore the error for now
_input.CompleteWriter();
}
else if (readCount == 0 || _input.Writing.IsCompleted)
{
_input.CompleteWriter();
}
else
{
_inputBuffer.Advance(readCount);
var task = _inputBuffer.FlushAsync();
if (!task.IsCompleted)
{
// If there's back pressure
handle.ReadStop();
// Resume reading when task continues
task.ContinueWith((t, state) => ((UvTcpConnection)state).StartReading(), this);
}
}
}
public void accept(UvStreamHandle server, UvStreamHandle client)
{
server.Validate();
client.Validate();
ThrowIfErrored(_uv_accept(server, client));
}
public void listen(UvStreamHandle handle, int backlog, uv_connection_cb cb)
{
handle.Validate();
ThrowIfErrored(_uv_listen(handle, backlog, cb));
}
private static void ReadCallback(UvStreamHandle handle, int status, object state)
{
((UvTcpConnection)state).OnRead(handle, status);
}
public void read_start(UvStreamHandle handle, uv_alloc_cb alloc_cb, uv_read_cb read_cb)
{
handle.Validate();
ThrowIfErrored(_uv_read_start(handle, alloc_cb, read_cb));
}
private static Uv.uv_buf_t AllocCallback(UvStreamHandle handle, int status, object state)
{
return ((UvTcpConnection)state).OnAlloc(handle, status);
}
public void read_stop(UvStreamHandle handle)
{
handle.Validate();
ThrowIfErrored(_uv_read_stop(handle));
}
public int try_write(UvStreamHandle handle, uv_buf_t[] bufs, int nbufs)
{
handle.Validate();
var count = _uv_try_write(handle, bufs, nbufs);
ThrowIfErrored(count);
return count;
}
public void Accept(UvStreamHandle handle)
{
_uv.accept(this, handle);
}